9a4d574b8d
* Makefile.in (DLL_OFILES): Add sigfe.o. Remove reliance on cygwin.def from cygwin0.dll dependency since dependence on sigfe.o implies that. Generate def file on the fly using 'gendef'. * configure.in: Don't auto-generate cygwin.def. * configure: Regenerate. * cygwin.din: Add SIGFE stuff where appropriate. * dcrt0.cc (dll_crt0_1): Initialize cygwin tls early in process startup. Set _main_tls to address of the main thread's cygwin tls. * debug.h: Remove now unneeded WFSO and WFMO declarations. * exceptions.cc (_last_thread): Define. (set_thread_state_for_signals): New function. (reset_thread_exception_for_signals): Ditto. (init_thread_for_signals): Ditto. (delete_thread_for_signals): Ditto. (capture_thread_for_signals): Ditto. (handle_exceptions): Set return address explicitly for exceptions prior to calling sig_send. (interrupt_on_return): Eliminate. (setup_handler): Add preliminary implementation for dealing with thread-specific signals by querying _main_tls. (signal_exit): Use cygthread::main_thread_id instead of mainthread.id. (call_signal_handler_now): For now, just handle the main thread. * fork.cc (vfork): Save and restore main _my_tls. * gendef: New file. Generates def file and sigfe.s file. * gentls_offsets: New file. Generates offsets for perl to use in sigfe.s. * how-signals-work.txt: Mention that info is obsolete. * init.cc (dll_entry): Initialize cygwin tls storage here. * miscfuncs.cc (low_priority_sleep): Make a C function for easier calling from asm. * perthread.h (vfork_save::tls): New element. * signal.cc (nanosleep): Replace previous use of sigframe.call_signal_handler_now with straight call to call_signal_handler_now. (abort): Ditto. * syscalls.cc (readv): Ditto. * termios.cc (tcsetattr): Ditto. * wait.cc (wait4): Ditto. * sigproc.cc (sig_dispatch_pending): Ditto. (sig_send): Ditto. * sigproc.h: Declare call_signal_handler_now. * thread.cc (pthread::thread_init_wrapper): Initialize cygwin tls. Remove obsolete and unworking signal stuff. * thread.h (verifyable_object::sigs): Eliminate. (verifyable_object::sigmask): Eliminate. (verifyable_object::sigtodo): Eliminate. (verifyable_object::exit): Make attribute noreturn. (verifyable_object::thread_init_wrapper): Ditto. (pthread_null::exit): Ditto. * winbase.h (__stackbase): Always define. * winsup.h (low_priority_sleep): Declare as a "C" function. * include/cygwin/version.h: Bump API version to reflect sigwait export. * include/sys/queue.h: Protect SLIST_ENTRY from previous declaration. * signal.cc (sigwait): Implement. * select.cc (fhandler_base::ready_for_read): Add debugging output. * devices.h: Define more device pointers via their storage. * devices.in: Don't parse things like /dev/inet/tcp, as they really have no meaning. * devices.cc: Regenerate. * gendevices: Set proper protection for output file. * cygtls.h: New file. * gendef: New file. * gentls_offsets: New file. * tlsoffsets.h: New file. Autogenerated. * config/i386/longjmp.c: Remove. File subsumed by gendef output. * config/i386/makefrag: Remove obsolete file. * fhandler.cc: Remove spurious access_worker declaration. * spawn.cc (spawnve): Make debugging output more accurate. * cygwin-gperf: Remove. * devices.cc: Remove.
306 lines
5.8 KiB
C++
306 lines
5.8 KiB
C++
/* termios.cc: termios for WIN32.
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Copyright 1996, 1997, 1998, 2000, 2001, 2002 Red Hat, Inc.
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Written by Doug Evans and Steve Chamberlain of Cygnus Support
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dje@cygnus.com, sac@cygnus.com
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <signal.h>
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#include <stdlib.h>
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#include "cygerrno.h"
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#include "security.h"
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#include "path.h"
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#include "fhandler.h"
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#include "dtable.h"
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#include "cygheap.h"
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#include "cygwin/version.h"
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#include "perprocess.h"
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#include "sigproc.h"
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#include <sys/termios.h>
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/* tcsendbreak: POSIX 7.2.2.1 */
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extern "C" int
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tcsendbreak (int fd, int duration)
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{
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int res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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goto out;
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if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
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res = cfd->tcsendbreak (duration);
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out:
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syscall_printf ("%d = tcsendbreak (%d, %d)", res, fd, duration);
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return res;
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}
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/* tcdrain: POSIX 7.2.2.1 */
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extern "C" int
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tcdrain (int fd)
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{
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int res = -1;
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termios_printf ("tcdrain");
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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goto out;
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if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
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res = cfd->tcdrain ();
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out:
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syscall_printf ("%d = tcdrain (%d)", res, fd);
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return res;
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}
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/* tcflush: POSIX 7.2.2.1 */
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extern "C" int
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tcflush (int fd, int queue)
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{
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int res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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goto out;
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if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else if (queue != TCIFLUSH && queue != TCOFLUSH && queue != TCIOFLUSH)
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set_errno (EINVAL);
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else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
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res = cfd->tcflush (queue);
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out:
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termios_printf ("%d = tcflush (%d, %d)", res, fd, queue);
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return res;
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}
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/* tcflow: POSIX 7.2.2.1 */
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extern "C" int
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tcflow (int fd, int action)
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{
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int res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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goto out;
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if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else if ((res = cfd->bg_check (-SIGTTOU)) > bg_eof)
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res = cfd->tcflow (action);
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out:
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syscall_printf ("%d = tcflow (%d, %d)", res, fd, action);
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return res;
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}
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/* tcsetattr: POSIX96 7.2.1.1 */
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extern "C" int
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tcsetattr (int fd, int a, const struct termios *t)
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{
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int res;
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t = __tonew_termios (t);
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int e = get_errno ();
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while (1)
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{
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res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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{
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e = get_errno ();
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break;
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}
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if (!cfd->is_tty ())
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{
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e = ENOTTY;
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break;
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}
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res = cfd->bg_check (-SIGTTOU);
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switch (res)
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{
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case bg_eof:
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e = get_errno ();
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break;
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case bg_ok:
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if (cfd.isopen ())
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res = cfd->tcsetattr (a, t);
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e = get_errno ();
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break;
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case bg_signalled:
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if (call_signal_handler_now ())
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continue;
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res = -1;
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/* fall through intentionally */
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default:
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e = get_errno ();
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break;
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}
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break;
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}
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set_errno (e);
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termios_printf ("iflag %p, oflag %p, cflag %p, lflag %p, VMIN %d, VTIME %d",
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t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
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t->c_cc[VTIME]);
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termios_printf ("%d = tcsetattr (%d, %d, %x)", res, fd, a, t);
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return res;
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}
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/* tcgetattr: POSIX 7.2.1.1 */
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extern "C" int
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tcgetattr (int fd, struct termios *in_t)
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{
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int res = -1;
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struct termios *t = __makenew_termios (in_t);
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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/* saw an error */;
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else if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else if ((res = cfd->tcgetattr (t)) == 0)
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(void) __toapp_termios (in_t, t);
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if (res)
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termios_printf ("%d = tcgetattr (%d, %p)", res, fd, in_t);
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else
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termios_printf ("iflag %x, oflag %x, cflag %x, lflag %x, VMIN %d, VTIME %d",
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t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
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t->c_cc[VTIME]);
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return res;
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}
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/* tcgetpgrp: POSIX 7.2.3.1 */
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extern "C" int
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tcgetpgrp (int fd)
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{
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int res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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/* saw an error */;
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else if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else
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res = cfd->tcgetpgrp ();
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termios_printf ("%d = tcgetpgrp (%d)", res, fd);
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return res;
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}
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/* tcsetpgrp: POSIX 7.2.4.1 */
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extern "C" int
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tcsetpgrp (int fd, pid_t pgid)
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{
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int res = -1;
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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/* saw an error */;
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else if (!cfd->is_tty ())
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set_errno (ENOTTY);
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else
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res = cfd->tcsetpgrp (pgid);
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termios_printf ("%d = tcsetpgrp (%d, %x)", res, fd, pgid);
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return res;
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}
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/* NIST PCTS requires not macro-only implementation */
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#undef cfgetospeed
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#undef cfgetispeed
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#undef cfsetospeed
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#undef cfsetispeed
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/* cfgetospeed: POSIX96 7.1.3.1 */
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extern "C" speed_t
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cfgetospeed (struct termios *tp)
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{
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return __tonew_termios (tp)->c_ospeed;
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}
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/* cfgetispeed: POSIX96 7.1.3.1 */
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extern "C" speed_t
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cfgetispeed (struct termios *tp)
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{
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return __tonew_termios (tp)->c_ispeed;
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}
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static inline int
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setspeed (speed_t &set_speed, speed_t from_speed)
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{
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int res;
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switch (from_speed)
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{
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case B0:
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case B50:
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case B75:
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case B110:
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case B134:
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case B150:
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case B200:
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case B300:
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case B600:
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case B1200:
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case B1800:
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case B2400:
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case B4800:
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case B9600:
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case B19200:
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case B38400:
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case B57600:
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case B115200:
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case B128000:
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case B230400:
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case B256000:
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set_speed = from_speed;
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res = 0;
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break;
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default:
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set_errno (EINVAL);
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res = -1;
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break;
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}
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return res;
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}
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/* cfsetospeed: POSIX96 7.1.3.1 */
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extern "C" int
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cfsetospeed (struct termios *in_tp, speed_t speed)
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{
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struct termios *tp = __tonew_termios (in_tp);
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int res = setspeed (tp->c_ospeed, speed);
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(void) __toapp_termios (in_tp, tp);
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return res;
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}
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/* cfsetispeed: POSIX96 7.1.3.1 */
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extern "C" int
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cfsetispeed (struct termios *in_tp, speed_t speed)
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{
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struct termios *tp = __tonew_termios (in_tp);
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int res = setspeed (tp->c_ispeed, speed);
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(void) __toapp_termios (in_tp, tp);
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return res;
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}
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